HEAT SINK HAVING RING-SHAPED LOUVERFIN MEMBER

摘要

A heat sink having a ring-shaped louver fin is provided to expand the heat contact surface between the heat sink and a heating source, thereby quickly transferring the heat. A heat sink comprises the followings: a lower part heat plate(100) which comes in contact with a heating source; a louver fin part(200) in which louver fins are formed in a ring shape at the upper side of the lower part heat plate; and a cooling fan(400) which is interposed in the ring-shaped louver fin part.